Home / 13,939.10-19,263.61-11,417.22

Finding the Fourth Proportional to 13,939.10, 19,263.61 and 11,417.22

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Solution

The fourth proportional to 13,939.10, 19,263.61 and 11,417.22 is: 15,778.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,939.10 : 19,263.61 = 11,417.22 : x
  2. Step 2: Convert to fraction form
    13,939.10/19,263.61 = 11,417.22/x
  3. Step 3: Cross multiply
    13,939.10x = 19,263.61 × 11,417.22
  4. Step 4: Simplify right side
    13,939.10x = 219,936,873.36
  5. Step 5: Solve for x
    x = 219,936,873.36/13,939.10
  6. Step 6: Final answer
    x = 15,778.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.